fix(isMobilePhone): regex for Pakistan(PK) (#1778)

* Fix Mobile Phone Regex Pakistan(PK)

Update the regex to validate mobile numbers correctly for Pakistan

* Add tests for mobile number validation locale en-PK (Pakistan)

* Linting fix

* Update src/lib/isMobilePhone.js

Update pakistan mobile regex according to suggestion

Co-authored-by: Sarhan Aissi <tux-tn@users.noreply.github.com>

* Update tests for PK phone numbers

Co-authored-by: Sarhan Aissi <tux-tn@users.noreply.github.com>

src/lib/isMobilePhone.js

@@ -43,7 +43,7 @@ const phones = {
   'en-MU': /^(\+?230|0)?\d{8}$/,
   'en-NG': /^(\+?234|0)?[789]\d{9}$/,
   'en-NZ': /^(\+?64|0)[28]\d{7,9}$/,
-  'en-PK': /^((\+92)|(0092))-{0,1}\d{3}-{0,1}\d{7}$|^\d{11}$|^\d{4}-\d{7}$/,
+  'en-PK': /^((00|\+)?92|0)3[0-6]\d{8}$/,
   'en-PH': /^(09|\+639)\d{9}$/,
   'en-RW': /^(\+?250|0)?[7]\d{8}$/,
   'en-SG': /^(\+65)?[3689]\d{7}$/,

test/validators.js

@@ -8080,6 +8080,26 @@ describe('Validators', () => {
           'NotANumber',
         ],
       },
+      {
+        locale: 'en-PK',
+        valid: [
+          '+923412877421',
+          '+923001234567',
+          '00923001234567',
+          '923001234567',
+          '03001234567',
+        ],
+        invalid: [
+          '+3001234567',
+          '+933001234567',
+          '+924001234567',
+          '+92300123456720',
+          '030012345672',
+          '30012345673',
+          '0030012345673',
+          '3001234567',
+        ],
+      },
     ];
 
     let allValid = [];